Bifixer installation with pip

[zuny26]

• Added setup.py
• Added scripts/bifixer that calls the main function from bifixer.py
• Moved loomchild segmenter dependency to an external repo for easier installation
  • segment submodule removed
  • toolwrapper requirement removed from this repo
  • added optional-requirements.txt to include segment as an optional dependency
  • updated tests

To install bifixer from this fork: pip install "bifixer @ git+https://github.com/zuny26/bifixer@setup"

With loomchild: pip install "bifixer[loomchild] @ git+https://github.com/zuny26/bifixer@setup"

I set the version of bifixer to 0.1 since there is no release on github, but I'm unsure about that, so feel free to change the version to something else :P

[zuny26]

I cannot install with pip install "bifixer @ https://github.com/zuny26/bifixer@setup"

Sorry! It should be pip install "bifixer @ git+https://github.com/zuny26/bifixer@setup"

[ZJaume]

Now it's working! thank you very much Elsa